Across-arc variation of the Famatinian magmatic arc (NW Argentina) exemplified by I-, S- and transitional I/S-type Early Ordovician granitoids of the Sierra de Velasco
- Autores
- Grosse, Pablo; Bellos, Laura Iudith; de Los Hoyos, Camilo Raul; Larrovere, Mariano Alexis; Rossi, Juana Norma; Toselli, Alejandro Jose
- Año de publicación
- 2011
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The Early Ordovician granitoids of the Sierra de Velasco reflect the across-arc compositional variation of the Famatinian magmatic arc (NW Argentina) developed along the proto-Andean margin of western Gondwana. This variation is characterized by means of field, petrographical, geochemical and isotopic studies. The Sierra de Velasco contains three main types of Early Ordovician granitoids that are mineralogically and geochemically distinct, but generally conform a continuous high-K, magnesian and calcalkalic magmatic series. I-type granitoids (IG) make up the southern part of the range. They are biotite-hornblende-titanite metaluminous to weakly peraluminous granodiorites and tonalites typical of a coastal I-type belt and were possibly formed by melting of mafic lower crust/lithospheric mantle, with minor assimilation of crustal metasediments. S-type granitoids (SG) crop out in the central and northern portions of the range. They are biotite-muscovite and biotite-cordierite strongly peraluminous syeno- and
monzogranites representative of an inland S-type belt and were possibly formed by large-scale
anatexis of metasedimentary crust and hybridization with more mafic lower crustal melts. Between the IG and SG, in the central parts of the range, transitional I/S-type granitoids (TG) are recognized that consist of biotite, biotite-muscovite and subordinate biotite-titanite-allanite-epidote moderately peraluminous monzogranites, granodiorites and tonalites. The TG show intermediate characteristics and were possibly generated by less common mechanisms of mixing between I-type and S-type magmas and/or their parent mafic lower crustal and metasedimentary melts. The transition from IG to TG to SG towards the continental interior reflects a compositional continuum related to a progressive variation in the degrees of mixing between mafic and metasedimentary end-members.
Fil: Grosse, Pablo. Fundación Miguel Lillo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina
Fil: Bellos, Laura Iudith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina
Fil: de Los Hoyos, Camilo Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina
Fil: Larrovere, Mariano Alexis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de Catamarca. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Secretaría de Industria y Minería. Servicio Geológico Minero Argentino. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Provincia de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja; Argentina
Fil: Rossi, Juana Norma. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina
Fil: Toselli, Alejandro Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina - Materia
-
I-Type Granitoids
S-Type Granitoids
Transitional I/S-Type Granitoids
Granitoid Genesis
Famatinian Magmatic Arc - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/77542
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Across-arc variation of the Famatinian magmatic arc (NW Argentina) exemplified by I-, S- and transitional I/S-type Early Ordovician granitoids of the Sierra de VelascoGrosse, PabloBellos, Laura Iudithde Los Hoyos, Camilo RaulLarrovere, Mariano AlexisRossi, Juana NormaToselli, Alejandro JoseI-Type GranitoidsS-Type GranitoidsTransitional I/S-Type GranitoidsGranitoid GenesisFamatinian Magmatic Archttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Early Ordovician granitoids of the Sierra de Velasco reflect the across-arc compositional variation of the Famatinian magmatic arc (NW Argentina) developed along the proto-Andean margin of western Gondwana. This variation is characterized by means of field, petrographical, geochemical and isotopic studies. The Sierra de Velasco contains three main types of Early Ordovician granitoids that are mineralogically and geochemically distinct, but generally conform a continuous high-K, magnesian and calcalkalic magmatic series. I-type granitoids (IG) make up the southern part of the range. They are biotite-hornblende-titanite metaluminous to weakly peraluminous granodiorites and tonalites typical of a coastal I-type belt and were possibly formed by melting of mafic lower crust/lithospheric mantle, with minor assimilation of crustal metasediments. S-type granitoids (SG) crop out in the central and northern portions of the range. They are biotite-muscovite and biotite-cordierite strongly peraluminous syeno- and<br />monzogranites representative of an inland S-type belt and were possibly formed by large-scale<br />anatexis of metasedimentary crust and hybridization with more mafic lower crustal melts. Between the IG and SG, in the central parts of the range, transitional I/S-type granitoids (TG) are recognized that consist of biotite, biotite-muscovite and subordinate biotite-titanite-allanite-epidote moderately peraluminous monzogranites, granodiorites and tonalites. The TG show intermediate characteristics and were possibly generated by less common mechanisms of mixing between I-type and S-type magmas and/or their parent mafic lower crustal and metasedimentary melts. The transition from IG to TG to SG towards the continental interior reflects a compositional continuum related to a progressive variation in the degrees of mixing between mafic and metasedimentary end-members.Fil: Grosse, Pablo. Fundación Miguel Lillo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; ArgentinaFil: Bellos, Laura Iudith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; ArgentinaFil: de Los Hoyos, Camilo Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; ArgentinaFil: Larrovere, Mariano Alexis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de Catamarca. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Secretaría de Industria y Minería. Servicio Geológico Minero Argentino. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Provincia de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja; ArgentinaFil: Rossi, Juana Norma. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; ArgentinaFil: Toselli, Alejandro Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; ArgentinaPergamon-Elsevier Science Ltd2011-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/77542Grosse, Pablo; Bellos, Laura Iudith; de Los Hoyos, Camilo Raul; Larrovere, Mariano Alexis; Rossi, Juana Norma; et al.; Across-arc variation of the Famatinian magmatic arc (NW Argentina) exemplified by I-, S- and transitional I/S-type Early Ordovician granitoids of the Sierra de Velasco; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 32; 1; 7-2011; 110-1260895-9811CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0895981111000381info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2011.03.014info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:43:58Zoai:ri.conicet.gov.ar:11336/77542instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:43:58.612CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Across-arc variation of the Famatinian magmatic arc (NW Argentina) exemplified by I-, S- and transitional I/S-type Early Ordovician granitoids of the Sierra de Velasco |
title |
Across-arc variation of the Famatinian magmatic arc (NW Argentina) exemplified by I-, S- and transitional I/S-type Early Ordovician granitoids of the Sierra de Velasco |
spellingShingle |
Across-arc variation of the Famatinian magmatic arc (NW Argentina) exemplified by I-, S- and transitional I/S-type Early Ordovician granitoids of the Sierra de Velasco Grosse, Pablo I-Type Granitoids S-Type Granitoids Transitional I/S-Type Granitoids Granitoid Genesis Famatinian Magmatic Arc |
title_short |
Across-arc variation of the Famatinian magmatic arc (NW Argentina) exemplified by I-, S- and transitional I/S-type Early Ordovician granitoids of the Sierra de Velasco |
title_full |
Across-arc variation of the Famatinian magmatic arc (NW Argentina) exemplified by I-, S- and transitional I/S-type Early Ordovician granitoids of the Sierra de Velasco |
title_fullStr |
Across-arc variation of the Famatinian magmatic arc (NW Argentina) exemplified by I-, S- and transitional I/S-type Early Ordovician granitoids of the Sierra de Velasco |
title_full_unstemmed |
Across-arc variation of the Famatinian magmatic arc (NW Argentina) exemplified by I-, S- and transitional I/S-type Early Ordovician granitoids of the Sierra de Velasco |
title_sort |
Across-arc variation of the Famatinian magmatic arc (NW Argentina) exemplified by I-, S- and transitional I/S-type Early Ordovician granitoids of the Sierra de Velasco |
dc.creator.none.fl_str_mv |
Grosse, Pablo Bellos, Laura Iudith de Los Hoyos, Camilo Raul Larrovere, Mariano Alexis Rossi, Juana Norma Toselli, Alejandro Jose |
author |
Grosse, Pablo |
author_facet |
Grosse, Pablo Bellos, Laura Iudith de Los Hoyos, Camilo Raul Larrovere, Mariano Alexis Rossi, Juana Norma Toselli, Alejandro Jose |
author_role |
author |
author2 |
Bellos, Laura Iudith de Los Hoyos, Camilo Raul Larrovere, Mariano Alexis Rossi, Juana Norma Toselli, Alejandro Jose |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
I-Type Granitoids S-Type Granitoids Transitional I/S-Type Granitoids Granitoid Genesis Famatinian Magmatic Arc |
topic |
I-Type Granitoids S-Type Granitoids Transitional I/S-Type Granitoids Granitoid Genesis Famatinian Magmatic Arc |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The Early Ordovician granitoids of the Sierra de Velasco reflect the across-arc compositional variation of the Famatinian magmatic arc (NW Argentina) developed along the proto-Andean margin of western Gondwana. This variation is characterized by means of field, petrographical, geochemical and isotopic studies. The Sierra de Velasco contains three main types of Early Ordovician granitoids that are mineralogically and geochemically distinct, but generally conform a continuous high-K, magnesian and calcalkalic magmatic series. I-type granitoids (IG) make up the southern part of the range. They are biotite-hornblende-titanite metaluminous to weakly peraluminous granodiorites and tonalites typical of a coastal I-type belt and were possibly formed by melting of mafic lower crust/lithospheric mantle, with minor assimilation of crustal metasediments. S-type granitoids (SG) crop out in the central and northern portions of the range. They are biotite-muscovite and biotite-cordierite strongly peraluminous syeno- and<br />monzogranites representative of an inland S-type belt and were possibly formed by large-scale<br />anatexis of metasedimentary crust and hybridization with more mafic lower crustal melts. Between the IG and SG, in the central parts of the range, transitional I/S-type granitoids (TG) are recognized that consist of biotite, biotite-muscovite and subordinate biotite-titanite-allanite-epidote moderately peraluminous monzogranites, granodiorites and tonalites. The TG show intermediate characteristics and were possibly generated by less common mechanisms of mixing between I-type and S-type magmas and/or their parent mafic lower crustal and metasedimentary melts. The transition from IG to TG to SG towards the continental interior reflects a compositional continuum related to a progressive variation in the degrees of mixing between mafic and metasedimentary end-members. Fil: Grosse, Pablo. Fundación Miguel Lillo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina Fil: Bellos, Laura Iudith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina Fil: de Los Hoyos, Camilo Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina Fil: Larrovere, Mariano Alexis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de Catamarca. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Secretaría de Industria y Minería. Servicio Geológico Minero Argentino. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Provincia de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja; Argentina Fil: Rossi, Juana Norma. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina Fil: Toselli, Alejandro Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina |
description |
The Early Ordovician granitoids of the Sierra de Velasco reflect the across-arc compositional variation of the Famatinian magmatic arc (NW Argentina) developed along the proto-Andean margin of western Gondwana. This variation is characterized by means of field, petrographical, geochemical and isotopic studies. The Sierra de Velasco contains three main types of Early Ordovician granitoids that are mineralogically and geochemically distinct, but generally conform a continuous high-K, magnesian and calcalkalic magmatic series. I-type granitoids (IG) make up the southern part of the range. They are biotite-hornblende-titanite metaluminous to weakly peraluminous granodiorites and tonalites typical of a coastal I-type belt and were possibly formed by melting of mafic lower crust/lithospheric mantle, with minor assimilation of crustal metasediments. S-type granitoids (SG) crop out in the central and northern portions of the range. They are biotite-muscovite and biotite-cordierite strongly peraluminous syeno- and<br />monzogranites representative of an inland S-type belt and were possibly formed by large-scale<br />anatexis of metasedimentary crust and hybridization with more mafic lower crustal melts. Between the IG and SG, in the central parts of the range, transitional I/S-type granitoids (TG) are recognized that consist of biotite, biotite-muscovite and subordinate biotite-titanite-allanite-epidote moderately peraluminous monzogranites, granodiorites and tonalites. The TG show intermediate characteristics and were possibly generated by less common mechanisms of mixing between I-type and S-type magmas and/or their parent mafic lower crustal and metasedimentary melts. The transition from IG to TG to SG towards the continental interior reflects a compositional continuum related to a progressive variation in the degrees of mixing between mafic and metasedimentary end-members. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-07 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/77542 Grosse, Pablo; Bellos, Laura Iudith; de Los Hoyos, Camilo Raul; Larrovere, Mariano Alexis; Rossi, Juana Norma; et al.; Across-arc variation of the Famatinian magmatic arc (NW Argentina) exemplified by I-, S- and transitional I/S-type Early Ordovician granitoids of the Sierra de Velasco; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 32; 1; 7-2011; 110-126 0895-9811 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/77542 |
identifier_str_mv |
Grosse, Pablo; Bellos, Laura Iudith; de Los Hoyos, Camilo Raul; Larrovere, Mariano Alexis; Rossi, Juana Norma; et al.; Across-arc variation of the Famatinian magmatic arc (NW Argentina) exemplified by I-, S- and transitional I/S-type Early Ordovician granitoids of the Sierra de Velasco; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 32; 1; 7-2011; 110-126 0895-9811 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0895981111000381 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2011.03.014 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Pergamon-Elsevier Science Ltd |
publisher.none.fl_str_mv |
Pergamon-Elsevier Science Ltd |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1842268636432039936 |
score |
13.13397 |